What was found
STABILIZER TRIM DISCONNECTED DURING FLIGHT, COULD NOT RE-ENGAGE EITHER CHANNEL. REPLACED THE HORIZONTAL STABILIZER TRIM CONTROL UNIT.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
STABILIZER TRIM DISCONNECTED DURING FLIGHT, COULD NOT RE-ENGAGE EITHER CHANNEL. REPLACED THE HORIZONTAL STABILIZER TRIM CONTROL UNIT.